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1987
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January
January; 89 (1): 1 - 176 |
February
February; 89 (2): 185 - 352 |
March
March; 89 (3): 353 - 518 |
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April
April; 89 (4): 521 - 667 |
May
May; 89 (5): 669 - 837 |
June
June; 89 (6): 841 - 1032 |
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July
July; 90 (1): 3 - 165 |
August
August; 90 (2): 173 - 320 |
September
September; 90 (3): 321 - 449 |
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October
October; 90 (4): 453 - 608 |
November
November; 90 (5): 609 - 762 |
December
December; 90 (6): 765 - 879 |
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